--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Gross Margin Calc" developer_entity: "Ed Stivala Limited" bundle_id: "com.EdStivala.margin.calc" app_store_id: "6448756151" google_play_id: "com.whiteflower10001.Gross_Margin_Calculator" category: "Business" primary_platform: "ios" primary_monetization: "Freemium" offline_capable: false market_region: "US" platforms: "iOS & Android" app_last_updated: "2026-02-06" report_date: "2026-06-02" last_verified: "2026-06-02T01:56:27.241Z" report_version: "3.6.3" total_reviews: 1 overall_rating: 5 confidence: "low" confidence_score: 0.2 data_age_days: 30 momentum_velocity: "active" intelligence_version: 3 nemesis: "Invoice Maker & Estimate App" competitor_count: 8 tags: ["business", "freemium", "mobile app", "app review", "app analysis", "e-commerce", "merchants", "platforms"] canonical_url: "https://marlvel.ai/intel-report/business/com-edstivala-margin-calc" license: "CC-BY-NC 4.0" content_version: "v2" --- # Gross Margin Calc App Audit ## TL;DR {#tldr} - **Category**: Business · Freemium - **Signal**: Rating 5 > **TL;DR:** Gross Margin Calc is a business app by Ed Stivala Limited, rated 5/5 by 1 users, available on iOS & Android. > > **Marlvel.ai App Intelligence** — Independent analysis. US Market. No publisher influence. > **Key Insight:** Gross Margin Calc is a business app by Ed Stivala Limited. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 5/5 (1 reviews) | | **Category** | Business | | **Developer** | Ed Stivala Limited | | **Pricing** | Freemium | | **Platforms** | iOS & Android | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 0d | ## Metadata & Market Performance - **Publisher:** Ed Stivala Limited - **Category:** Business - **Target Audience:** E-commerce merchants on platforms like eBay, Amazon, and Shopify, and sales professionals requiring quick financial margin calculations. - **Platforms:** iOS & Android - **Version Audited:** 3.6.3 - **Audit Date:** 2026-06-02 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6448756151 - **Bundle ID:** com.EdStivala.margin.calc - **Google Play ID:** com.whiteflower10001.Gross_Margin_Calculator - **Performance Trend:** Mixed - **Data Window:** Analysis based on signals collected up to 2026-06-02 - **Short Description:** Quick simple calculator for calculating your gross margin ## Executive Snapshot **What it is:** Gross Margin Calc is a financial utility for calculating mark-up, margin, and platform-specific selling prices on iOS and Android. **Why users hire it:** Users hire this app to eliminate manual math errors when calculating net profit across marketplaces with complex fee structures. ## App DNA (Features & Intent) - **[Differentiator] Platform-Specific Fee Modeling:** Configurable fee structures for eBay, Amazon, and Shopify to calculate required selling prices based on cost and margin - **[Standard] Multi-Variable Calculation:** Calculates mark-up, margin, selling price, or cost price from any two input variables - **[Standard] Tax and Delivery Integration:** Supports GST/VAT calculations on cost or sell price, plus inclusion of delivery charges - **[Differentiator] Ad-Free Experience:** Zero advertisements or in-app purchases in the iOS version ## Market Position {#market-position} The app holds the #92 Paid position in the US Business category on iOS. The divergence between the $3.99 iOS price and the ad-supported Android model signals a strategy to capture professional value on Apple hardware while monetizing casual traffic via ads on Android. ## Monetization Strategy - **Model:** Freemium - **Tiers:** iOS: $3.99 one-time purchase, Android: Free with ad support - **Price:** iOS: $3.99 - **Analysis:** Monetization is bifurcated by platform, using a $3.99 upfront purchase on iOS to capture value from professional users while utilizing ad-inventory on the Android version. ## SWOT Analysis {#swot} **Core Strengths:** - Platform-specific fee modeling establishes category authority for e-commerce sellers - Ad-free iOS experience creates a distraction-free environment for professional users - Multi-variable calculation logic provides a core utility loop for daily financial tasks **Critical Frictions:** - Android version relies on ad-support while iOS is paid, creating a fragmented brand experience - No cloud-sync functionality limits multi-device professional workflows - Limited social proof with only 1 rating on iOS **Growth Levers:** - Develop B2B partnerships with e-commerce coaching platforms for distribution - Add cloud-save functionality to improve retention for multi-device power users **Market Threats:** - Platform-native tools like Amazon Seller and eBay provide real-time fee updates that a third-party calculator cannot match - Rapid feature iteration by rivals like Bookipi creates a feature-gap risk ## Recent Changes (v2 → v3) {#recent-changes} The app adopted a freemium monetization strategy and refined its market positioning to focus on e-commerce fee modeling as a primary differentiator. **Overall trend**: Mixed **Compared at**: 2026-06-02 ### High-impact changes - **[Shifted] Monetization Model** (pricing) — Pricing model shifted from paid-only to freemium, introducing a $3.99 iOS purchase and ad-supported Android access. - **[Shifted] Market Positioning** (positioning) — Shifted from a general business utility to a specialized e-commerce tool targeting high-volume sellers on platforms like eBay and Amazon. ### Medium-impact changes - **[Improved] Fee Modeling Repositioning** (features) — Platform-specific fee modeling moved from a standard feature to a competitive differentiator. - **[Added] Ad-Free Experience** (features) — Added ad-free usage as a specific differentiator for the iOS version. ## Rivals Landscape {#rivals} > Competitive positioning identified by AI analysis of app features, category, and market signals. ### Gross Margin Calc vs Invoice Maker & Estimate App — Head to Head - **[Invoice Maker & Estimate App](https://marlvel.ai/intel-report/finance/bookipi-invoice-maker-estimate-billing-2go)** by Bookipi Pty Ltd: Directly targets the same SMB/freelancer audience with a focus on financial documentation and margin-adjacent workflows. - **Moat strength:** Medium — durable but contestable - **Key differences:** - Integrates full invoicing and estimate creation workflows directly into the core financial calculation experience. - Maintains a high release cadence of 9 updates in six months, indicating rapid feature iteration. ### Peers (What They Do Better) - **[Amazon Seller](https://marlvel.ai/intel-report/business/com-amazon-amazonseller)** by AMZN Mobile LLC: Provides platform-specific margin tools for the largest e-commerce marketplace, serving the target's core user base. - Offers native integration with Amazon's proprietary fee structures and real-time inventory management data. - Provides a closed-loop ecosystem for sellers that makes third-party standalone calculators redundant for Amazon-only merchants. - **[Square Point of Sale (POS)](https://marlvel.ai/intel-report/business/com-squareup-square)** by Block, Inc.: Adjacent financial tool that captures the transaction-level margin data at the point of sale. - Automates margin tracking by syncing directly with real-time sales data and payment processing fees. - Leverages a comprehensive business dashboard that provides deeper financial insights than a standalone calculator. - **[Shopify Point of Sale (POS)](https://marlvel.ai/intel-report/business/shopify-point-of-sale-pos)** by Shopify Inc.: Adjacent business tool serving the same merchant demographic with integrated financial reporting capabilities. - Provides unified inventory and margin reporting across both physical retail and online storefront channels. - Offers deep integration with third-party apps that automate complex tax and shipping cost calculations. - **[QuickBooks Workforce](https://marlvel.ai/intel-report/business/com-tsheets-greatwhite-tsheets)** by Intuit Inc.: Adjacent accounting-focused tool that addresses the broader financial management needs of the target audience. - Connects margin calculations to actual payroll and labor cost data for more accurate profitability analysis. - Provides enterprise-grade financial reporting that scales far beyond the capabilities of a simple calculator. - **[Meta Ads Manager](https://marlvel.ai/intel-report/business/com-facebook-madman)** by Meta Platforms, Inc.: Adjacent tool used by merchants to calculate return on ad spend, a critical component of gross margin. - Enables real-time tracking of customer acquisition costs which directly impacts the merchant's net margin. - Delivers high-frequency updates to match the rapidly changing landscape of digital advertising performance metrics. - **[eBay online shopping & selling](https://marlvel.ai/intel-report/shopping/ebay-online-shopping-selling)** by eBay Inc.: Platform-specific tool that includes built-in selling and fee estimation features for the eBay marketplace. - Provides native fee calculators that are always current with the platform's changing commission structures. - Offers a massive user base and integrated shipping label generation that simplifies the entire selling process. ### New Kids on the Block (What's Innovative) - **[TikTok Shop Seller Center](https://marlvel.ai/intel-report/business/com-tiktokshop-seller)** by TikTok Ltd.: Rapidly emerging platform-specific tool capturing the new wave of social commerce sellers. ## App Momentum (Active) {#momentum} - Fixed product detail storage issues. - Ships performance improvements in latest release. > **Cadence:** 5 total versions · 0 majors in last 6 months · 87 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Gross Margin Calc is an established business app that is free with in-app purchases. With a 5/5 rating from 1 reviews, it shows polarized user reception. > **Bottom Line:** Gross Margin Calc provides essential utility for e-commerce sellers, but its fragmented monetization and lack of cloud-sync limit its professional appeal, so the PM should prioritize cross-platform data parity to defend against platform-native tools. **Best for:** E-commerce merchants on platforms like eBay, Amazon, and Shopify, and sales professionals requiring quick financial margin calculations. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] [HIGH IMPACT] Ship cloud-sync functionality because multi-device usage is a standard expectation for professional financial tools → increase retention — *Lack of cloud-save is a friction point for professional users managing data across multiple devices.* _(trade-off: deprioritize Push the Android UI refresh to Q3 — cloud-sync has a higher impact on professional retention.)_ - [ ] [PIVOT] [MEDIUM IMPACT] Unify monetization model by offering a paid ad-free tier on Android because the current bifurcated model fragments brand perception → improve brand consistency — *The current split between paid iOS and ad-supported Android creates a disjointed user experience.* _(trade-off: deprioritize Pause the ad-inventory optimization sprint — brand consistency is critical for long-term professional trust.)_ ### Feature Gaps vs Competitors - Integrated invoicing and estimate creation (available in Invoice Maker & Estimate App) - Real-time inventory management integration (available in Amazon Seller) ### Outlook: Stable The market for standalone margin calculators is consolidating as marketplaces integrate their own financial tools. Gross Margin Calc remains stable but exposed, so long-term viability hinges on moving beyond simple math into workflow integration. - ⚪ Recent updates focused on stability and bug fixes, indicating a maintenance-mode posture rather than aggressive feature expansion. - 🔴 Platform-native tools like Amazon Seller are increasing their feature depth, which directly drains the utility value of standalone calculators. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 5/5 | | Total Reviews | 1 | | Confidence | Low | | Pricing Model | Freemium | | Platforms | iOS & Android | | Key Features | 4 analyzed | | Trend | Mixed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Gross Margin Calc** (this app) | 5/5 | N/A | Ed Stivala Limited | | [TikTok Shop Seller Center](https://marlvel.ai/intel-report/business/com-tiktokshop-seller) | 4.6/5 | Frustrated | TikTok Ltd. | | [Amazon Seller](https://marlvel.ai/intel-report/business/com-amazon-amazonseller) | 4.6/5 | Upset | AMZN Mobile LLC | | [Meta Ads Manager](https://marlvel.ai/intel-report/business/com-facebook-madman) | 4.5/5 | Mixed | Meta Platforms, Inc. | | [QuickBooks Workforce](https://marlvel.ai/intel-report/business/com-tsheets-greatwhite-tsheets) | 4.7/5 | N/A | Intuit Inc. | | [Square Point of Sale (POS)](https://marlvel.ai/intel-report/business/com-squareup-square) | 4.8/5 | Frustrated | Block, Inc. | ## Company Profile - **Developer:** Ed Stivala Limited - **Website:** [https://apps.devilhunter.net](https://apps.devilhunter.net) - **Social:** [Facebook](https://www.facebook.com/devilhunter.net) · [X/Twitter](https://twitter.com/devilhunternet) · [YouTube](https://www.youtube.com/devilhunternet) · [LinkedIn](https://www.linkedin.com/in/tawhidurrahmandear) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/gross-margin-calc/id6448756151?uo=2) - **Google Play:** [View on Google Play](https://play.google.com/store/apps/details?id=com.whiteflower10001.Gross_Margin_Calculator&hl=en&gl=us) - **Dev Site:** [Official Website](https://apps.devilhunter.net) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*TikTok Shop Seller Center*](https://marlvel.ai/intel-report/business/com-tiktokshop-seller) (TikTok Ltd.) — 4.6/5 Rating | Negative Sentiment - [*Amazon Seller*](https://marlvel.ai/intel-report/business/com-amazon-amazonseller) (AMZN Mobile LLC) — 4.6/5 Rating | Terrible Sentiment - [*Meta Ads Manager*](https://marlvel.ai/intel-report/business/com-facebook-madman) (Meta Platforms, Inc.) — 4.5/5 Rating | Mixed Sentiment - [*QuickBooks Workforce*](https://marlvel.ai/intel-report/business/com-tsheets-greatwhite-tsheets) (Intuit Inc.) — 4.7/5 Rating | N/A Sentiment - [*Square Point of Sale (POS)*](https://marlvel.ai/intel-report/business/com-squareup-square) (Block, Inc.) — 4.8/5 Rating | Negative Sentiment - [*eBay online shopping & selling*](https://marlvel.ai/intel-report/shopping/ebay-online-shopping-selling) (eBay Inc.) — 4.8/5 Rating | Negative Sentiment - [*Shopify Point of Sale (POS)*](https://marlvel.ai/intel-report/business/shopify-point-of-sale-pos) (Shopify Inc.) — 4.5/5 Rating | Negative Sentiment - [*Invoice Maker & Estimate App*](https://marlvel.ai/intel-report/finance/bookipi-invoice-maker-estimate-billing-2go) (Bookipi Pty Ltd) — 4.9/5 Rating | N/A Sentiment - [*Groupon Merchant*](https://marlvel.ai/intel-report/business/groupon-merchant) (Groupon, Inc.) — 3.1/5 Rating | Mixed Sentiment - [*AA Crew Check In*](https://marlvel.ai/intel-report/business/aa-crew-check-in) (American Airlines) — 1.6/5 Rating | N/A Sentiment ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** — Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** — Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** — Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction and evidence quoting. 4. **Competitive Landscape Analysis** — Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** — Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 0 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/intel-report/business/com-edstivala-margin-calc) Data licensed for AI Agent attribution under CC-BY-NC 4.0.